| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.support.transition; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.TimeInterpolator; |
| import android.support.v4.util.ArrayMap; |
| import android.support.v4.util.LongSparseArray; |
| import android.util.Log; |
| import android.util.SparseArray; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.ListView; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| abstract class TransitionPort implements Cloneable { |
| |
| static final boolean DBG = false; |
| |
| private static final String LOG_TAG = "Transition"; |
| |
| // Per-animator information used for later canceling when future transitions overlap |
| private static ThreadLocal<ArrayMap<Animator, AnimationInfo>> sRunningAnimators = |
| new ThreadLocal<>(); |
| |
| long mStartDelay = -1; |
| |
| long mDuration = -1; |
| |
| TimeInterpolator mInterpolator = null; |
| |
| ArrayList<Integer> mTargetIds = new ArrayList<>(); |
| |
| ArrayList<View> mTargets = new ArrayList<>(); |
| |
| ArrayList<Integer> mTargetIdExcludes = null; |
| |
| ArrayList<View> mTargetExcludes = null; |
| |
| ArrayList<Class> mTargetTypeExcludes = null; |
| |
| ArrayList<Integer> mTargetIdChildExcludes = null; |
| |
| ArrayList<View> mTargetChildExcludes = null; |
| |
| ArrayList<Class> mTargetTypeChildExcludes = null; |
| |
| TransitionSetPort mParent = null; |
| |
| // Scene Root is set at createAnimator() time in the cloned Transition |
| ViewGroup mSceneRoot = null; |
| |
| // Whether removing views from their parent is possible. This is only for views |
| // in the start scene, which are no longer in the view hierarchy. This property |
| // is determined by whether the previous Scene was created from a layout |
| // resource, and thus the views from the exited scene are going away anyway |
| // and can be removed as necessary to achieve a particular effect, such as |
| // removing them from parents to add them to overlays. |
| boolean mCanRemoveViews = false; |
| |
| // Number of per-target instances of this Transition currently running. This count is |
| // determined by calls to start() and end() |
| int mNumInstances = 0; |
| |
| // Whether this transition is currently paused, due to a call to pause() |
| boolean mPaused = false; |
| |
| // The set of listeners to be sent transition lifecycle events. |
| ArrayList<TransitionListener> mListeners = null; |
| |
| // The set of animators collected from calls to createAnimator(), |
| // to be run in runAnimators() |
| ArrayList<Animator> mAnimators = new ArrayList<>(); |
| |
| private String mName = getClass().getName(); |
| |
| private android.support.transition.TransitionValuesMaps mStartValues |
| = new android.support.transition.TransitionValuesMaps(); |
| |
| private android.support.transition.TransitionValuesMaps mEndValues |
| = new android.support.transition.TransitionValuesMaps(); |
| |
| // Track all animators in use in case the transition gets canceled and needs to |
| // cancel running animators |
| private ArrayList<Animator> mCurrentAnimators = new ArrayList<>(); |
| |
| // Whether this transition has ended. Used to avoid pause/resume on transitions |
| // that have completed |
| private boolean mEnded = false; |
| |
| /** |
| * Constructs a Transition object with no target objects. A transition with |
| * no targets defaults to running on all target objects in the scene hierarchy |
| * (if the transition is not contained in a TransitionSet), or all target |
| * objects passed down from its parent (if it is in a TransitionSet). |
| */ |
| public TransitionPort() { |
| } |
| |
| private static ArrayMap<Animator, AnimationInfo> getRunningAnimators() { |
| ArrayMap<Animator, AnimationInfo> runningAnimators = sRunningAnimators.get(); |
| if (runningAnimators == null) { |
| runningAnimators = new ArrayMap<>(); |
| sRunningAnimators.set(runningAnimators); |
| } |
| return runningAnimators; |
| } |
| |
| public long getDuration() { |
| return mDuration; |
| } |
| |
| public TransitionPort setDuration(long duration) { |
| mDuration = duration; |
| return this; |
| } |
| |
| public long getStartDelay() { |
| return mStartDelay; |
| } |
| |
| public TransitionPort setStartDelay(long startDelay) { |
| mStartDelay = startDelay; |
| return this; |
| } |
| |
| public TimeInterpolator getInterpolator() { |
| return mInterpolator; |
| } |
| |
| public TransitionPort setInterpolator(TimeInterpolator interpolator) { |
| mInterpolator = interpolator; |
| return this; |
| } |
| |
| public String[] getTransitionProperties() { |
| return null; |
| } |
| |
| |
| public Animator createAnimator(ViewGroup sceneRoot, TransitionValues startValues, |
| TransitionValues endValues) { |
| return null; |
| } |
| |
| /** |
| * This method, essentially a wrapper around all calls to createAnimator for all |
| * possible target views, is called with the entire set of start/end |
| * values. The implementation in Transition iterates through these lists |
| * and calls {@link #createAnimator(ViewGroup, TransitionValues, TransitionValues)} |
| * with each set of start/end values on this transition. The |
| * TransitionSet subclass overrides this method and delegates it to |
| * each of its children in succession. |
| * |
| * @hide |
| */ |
| protected void createAnimators(ViewGroup sceneRoot, TransitionValuesMaps startValues, |
| TransitionValuesMaps endValues) { |
| if (DBG) { |
| Log.d(LOG_TAG, "createAnimators() for " + this); |
| } |
| ArrayMap<View, TransitionValues> endCopy = |
| new ArrayMap<>(endValues.viewValues); |
| SparseArray<TransitionValues> endIdCopy = |
| new SparseArray<>(endValues.idValues.size()); |
| for (int i = 0; i < endValues.idValues.size(); ++i) { |
| int id = endValues.idValues.keyAt(i); |
| endIdCopy.put(id, endValues.idValues.valueAt(i)); |
| } |
| LongSparseArray<TransitionValues> endItemIdCopy = |
| new LongSparseArray<>(endValues.itemIdValues.size()); |
| for (int i = 0; i < endValues.itemIdValues.size(); ++i) { |
| long id = endValues.itemIdValues.keyAt(i); |
| endItemIdCopy.put(id, endValues.itemIdValues.valueAt(i)); |
| } |
| // Walk through the start values, playing everything we find |
| // Remove from the end set as we go |
| ArrayList<TransitionValues> startValuesList = new ArrayList<>(); |
| ArrayList<TransitionValues> endValuesList = new ArrayList<>(); |
| for (View view : startValues.viewValues.keySet()) { |
| TransitionValues start; |
| TransitionValues end = null; |
| boolean isInListView = false; |
| if (view.getParent() instanceof ListView) { |
| isInListView = true; |
| } |
| if (!isInListView) { |
| int id = view.getId(); |
| start = startValues.viewValues.get(view) != null ? |
| startValues.viewValues.get(view) : startValues.idValues.get(id); |
| if (endValues.viewValues.get(view) != null) { |
| end = endValues.viewValues.get(view); |
| endCopy.remove(view); |
| } else if (id != View.NO_ID) { |
| end = endValues.idValues.get(id); |
| View removeView = null; |
| for (View viewToRemove : endCopy.keySet()) { |
| if (viewToRemove.getId() == id) { |
| removeView = viewToRemove; |
| } |
| } |
| if (removeView != null) { |
| endCopy.remove(removeView); |
| } |
| } |
| endIdCopy.remove(id); |
| if (isValidTarget(view, id)) { |
| startValuesList.add(start); |
| endValuesList.add(end); |
| } |
| } else { |
| ListView parent = (ListView) view.getParent(); |
| if (parent.getAdapter().hasStableIds()) { |
| int position = parent.getPositionForView(view); |
| long itemId = parent.getItemIdAtPosition(position); |
| start = startValues.itemIdValues.get(itemId); |
| endItemIdCopy.remove(itemId); |
| // TODO: deal with targetIDs for itemIDs for ListView items |
| startValuesList.add(start); |
| endValuesList.add(end); |
| } |
| } |
| } |
| int startItemIdCopySize = startValues.itemIdValues.size(); |
| for (int i = 0; i < startItemIdCopySize; ++i) { |
| long id = startValues.itemIdValues.keyAt(i); |
| if (isValidTarget(null, id)) { |
| TransitionValues start = startValues.itemIdValues.get(id); |
| TransitionValues end = endValues.itemIdValues.get(id); |
| endItemIdCopy.remove(id); |
| startValuesList.add(start); |
| endValuesList.add(end); |
| } |
| } |
| // Now walk through the remains of the end set |
| for (View view : endCopy.keySet()) { |
| int id = view.getId(); |
| if (isValidTarget(view, id)) { |
| TransitionValues start = startValues.viewValues.get(view) != null ? |
| startValues.viewValues.get(view) : startValues.idValues.get(id); |
| TransitionValues end = endCopy.get(view); |
| endIdCopy.remove(id); |
| startValuesList.add(start); |
| endValuesList.add(end); |
| } |
| } |
| int endIdCopySize = endIdCopy.size(); |
| for (int i = 0; i < endIdCopySize; ++i) { |
| int id = endIdCopy.keyAt(i); |
| if (isValidTarget(null, id)) { |
| TransitionValues start = startValues.idValues.get(id); |
| TransitionValues end = endIdCopy.get(id); |
| startValuesList.add(start); |
| endValuesList.add(end); |
| } |
| } |
| int endItemIdCopySize = endItemIdCopy.size(); |
| for (int i = 0; i < endItemIdCopySize; ++i) { |
| long id = endItemIdCopy.keyAt(i); |
| // TODO: Deal with targetIDs and itemIDs |
| TransitionValues start = startValues.itemIdValues.get(id); |
| TransitionValues end = endItemIdCopy.get(id); |
| startValuesList.add(start); |
| endValuesList.add(end); |
| } |
| ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators(); |
| for (int i = 0; i < startValuesList.size(); ++i) { |
| TransitionValues start = startValuesList.get(i); |
| TransitionValues end = endValuesList.get(i); |
| // Only bother trying to animate with values that differ between start/end |
| if (start != null || end != null) { |
| if (start == null || !start.equals(end)) { |
| if (DBG) { |
| View view = (end != null) ? end.view : start.view; |
| Log.d(LOG_TAG, " differing start/end values for view " + |
| view); |
| if (start == null || end == null) { |
| Log.d(LOG_TAG, " " + ((start == null) ? |
| "start null, end non-null" : "start non-null, end null")); |
| } else { |
| for (String key : start.values.keySet()) { |
| Object startValue = start.values.get(key); |
| Object endValue = end.values.get(key); |
| if (startValue != endValue && !startValue.equals(endValue)) { |
| Log.d(LOG_TAG, " " + key + ": start(" + startValue + |
| "), end(" + endValue + ")"); |
| } |
| } |
| } |
| } |
| // TODO: what to do about targetIds and itemIds? |
| Animator animator = createAnimator(sceneRoot, start, end); |
| if (animator != null) { |
| // Save animation info for future cancellation purposes |
| View view; |
| TransitionValues infoValues = null; |
| if (end != null) { |
| view = end.view; |
| String[] properties = getTransitionProperties(); |
| if (view != null && properties != null && properties.length > 0) { |
| infoValues = new TransitionValues(); |
| infoValues.view = view; |
| TransitionValues newValues = endValues.viewValues.get(view); |
| if (newValues != null) { |
| for (int j = 0; j < properties.length; ++j) { |
| infoValues.values.put(properties[j], |
| newValues.values.get(properties[j])); |
| } |
| } |
| int numExistingAnims = runningAnimators.size(); |
| for (int j = 0; j < numExistingAnims; ++j) { |
| Animator anim = runningAnimators.keyAt(j); |
| AnimationInfo info = runningAnimators.get(anim); |
| if (info.values != null && info.view == view && |
| ((info.name == null && getName() == null) || |
| info.name.equals(getName()))) { |
| if (info.values.equals(infoValues)) { |
| // Favor the old animator |
| animator = null; |
| break; |
| } |
| } |
| } |
| } |
| } else { |
| view = start.view; |
| } |
| if (animator != null) { |
| AnimationInfo info = new AnimationInfo(view, getName(), infoValues); |
| runningAnimators.put(animator, info); |
| mAnimators.add(animator); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Internal utility method for checking whether a given view/id |
| * is valid for this transition, where "valid" means that either |
| * the Transition has no target/targetId list (the default, in which |
| * cause the transition should act on all views in the hiearchy), or |
| * the given view is in the target list or the view id is in the |
| * targetId list. If the target parameter is null, then the target list |
| * is not checked (this is in the case of ListView items, where the |
| * views are ignored and only the ids are used). |
| */ |
| boolean isValidTarget(View target, long targetId) { |
| if (mTargetIdExcludes != null && mTargetIdExcludes.contains(targetId)) { |
| return false; |
| } |
| if (mTargetExcludes != null && mTargetExcludes.contains(target)) { |
| return false; |
| } |
| if (mTargetTypeExcludes != null && target != null) { |
| int numTypes = mTargetTypeExcludes.size(); |
| for (int i = 0; i < numTypes; ++i) { |
| Class type = mTargetTypeExcludes.get(i); |
| if (type.isInstance(target)) { |
| return false; |
| } |
| } |
| } |
| if (mTargetIds.size() == 0 && mTargets.size() == 0) { |
| return true; |
| } |
| if (mTargetIds.size() > 0) { |
| for (int i = 0; i < mTargetIds.size(); ++i) { |
| if (mTargetIds.get(i) == targetId) { |
| return true; |
| } |
| } |
| } |
| if (target != null && mTargets.size() > 0) { |
| for (int i = 0; i < mTargets.size(); ++i) { |
| if (mTargets.get(i) == target) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * This is called internally once all animations have been set up by the |
| * transition hierarchy. \ |
| * |
| * @hide |
| */ |
| protected void runAnimators() { |
| if (DBG) { |
| Log.d(LOG_TAG, "runAnimators() on " + this); |
| } |
| start(); |
| ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators(); |
| // Now start every Animator that was previously created for this transition |
| for (Animator anim : mAnimators) { |
| if (DBG) { |
| Log.d(LOG_TAG, " anim: " + anim); |
| } |
| if (runningAnimators.containsKey(anim)) { |
| start(); |
| runAnimator(anim, runningAnimators); |
| } |
| } |
| mAnimators.clear(); |
| end(); |
| } |
| |
| private void runAnimator(Animator animator, |
| final ArrayMap<Animator, AnimationInfo> runningAnimators) { |
| if (animator != null) { |
| // TODO: could be a single listener instance for all of them since it uses the param |
| animator.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationStart(Animator animation) { |
| mCurrentAnimators.add(animation); |
| } |
| |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| runningAnimators.remove(animation); |
| mCurrentAnimators.remove(animation); |
| } |
| }); |
| animate(animator); |
| } |
| } |
| |
| public abstract void captureStartValues(TransitionValues transitionValues); |
| |
| public abstract void captureEndValues(TransitionValues transitionValues); |
| |
| public TransitionPort addTarget(int targetId) { |
| if (targetId > 0) { |
| mTargetIds.add(targetId); |
| } |
| return this; |
| } |
| |
| public TransitionPort removeTarget(int targetId) { |
| if (targetId > 0) { |
| // TODO: This implementation needs to be applied to K and L for b/22043875 |
| mTargetIds.remove((Integer) targetId); |
| } |
| return this; |
| } |
| |
| public TransitionPort excludeTarget(int targetId, boolean exclude) { |
| mTargetIdExcludes = excludeId(mTargetIdExcludes, targetId, exclude); |
| return this; |
| } |
| |
| |
| public TransitionPort excludeChildren(int targetId, boolean exclude) { |
| mTargetIdChildExcludes = excludeId(mTargetIdChildExcludes, targetId, exclude); |
| return this; |
| } |
| |
| /** |
| * Utility method to manage the boilerplate code that is the same whether we |
| * are excluding targets or their children. |
| */ |
| private ArrayList<Integer> excludeId(ArrayList<Integer> list, int targetId, boolean exclude) { |
| if (targetId > 0) { |
| if (exclude) { |
| list = ArrayListManager.add(list, targetId); |
| } else { |
| list = ArrayListManager.remove(list, targetId); |
| } |
| } |
| return list; |
| } |
| |
| public TransitionPort excludeTarget(View target, boolean exclude) { |
| mTargetExcludes = excludeView(mTargetExcludes, target, exclude); |
| return this; |
| } |
| |
| public TransitionPort excludeChildren(View target, boolean exclude) { |
| mTargetChildExcludes = excludeView(mTargetChildExcludes, target, exclude); |
| return this; |
| } |
| |
| /** |
| * Utility method to manage the boilerplate code that is the same whether we |
| * are excluding targets or their children. |
| */ |
| private ArrayList<View> excludeView(ArrayList<View> list, View target, boolean exclude) { |
| if (target != null) { |
| if (exclude) { |
| list = ArrayListManager.add(list, target); |
| } else { |
| list = ArrayListManager.remove(list, target); |
| } |
| } |
| return list; |
| } |
| |
| public TransitionPort excludeTarget(Class type, boolean exclude) { |
| mTargetTypeExcludes = excludeType(mTargetTypeExcludes, type, exclude); |
| return this; |
| } |
| |
| public TransitionPort excludeChildren(Class type, boolean exclude) { |
| mTargetTypeChildExcludes = excludeType(mTargetTypeChildExcludes, type, exclude); |
| return this; |
| } |
| |
| /** |
| * Utility method to manage the boilerplate code that is the same whether we |
| * are excluding targets or their children. |
| */ |
| private ArrayList<Class> excludeType(ArrayList<Class> list, Class type, boolean exclude) { |
| if (type != null) { |
| if (exclude) { |
| list = ArrayListManager.add(list, type); |
| } else { |
| list = ArrayListManager.remove(list, type); |
| } |
| } |
| return list; |
| } |
| |
| /** |
| * Sets the target view instances that this Transition is interested in |
| * animating. By default, there are no targets, and a Transition will |
| * listen for changes on every view in the hierarchy below the sceneRoot |
| * of the Scene being transitioned into. Setting targets constrains |
| * the Transition to only listen for, and act on, these views. |
| * All other views will be ignored. |
| * |
| * <p>The target list is like the {@link #addTarget(int) targetId} |
| * list except this list specifies the actual View instances, not the ids |
| * of the views. This is an important distinction when scene changes involve |
| * view hierarchies which have been inflated separately; different views may |
| * share the same id but not actually be the same instance. If the transition |
| * should treat those views as the same, then {@link #addTarget(int)} should be used |
| * instead of {@link #addTarget(View)}. If, on the other hand, scene changes involve |
| * changes all within the same view hierarchy, among views which do not |
| * necessarily have ids set on them, then the target list of views may be more |
| * convenient.</p> |
| * |
| * @param target A View on which the Transition will act, must be non-null. |
| * @return The Transition to which the target is added. |
| * Returning the same object makes it easier to chain calls during |
| * construction, such as |
| * <code>transitionSet.addTransitions(new Fade()).addTarget(someView);</code> |
| * @see #addTarget(int) |
| */ |
| public TransitionPort addTarget(View target) { |
| mTargets.add(target); |
| return this; |
| } |
| |
| public TransitionPort removeTarget(View target) { |
| if (target != null) { |
| mTargets.remove(target); |
| } |
| return this; |
| } |
| |
| public List<Integer> getTargetIds() { |
| return mTargetIds; |
| } |
| |
| public List<View> getTargets() { |
| return mTargets; |
| } |
| |
| /** |
| * Recursive method that captures values for the given view and the |
| * hierarchy underneath it. |
| * |
| * @param sceneRoot The root of the view hierarchy being captured |
| * @param start true if this capture is happening before the scene change, |
| * false otherwise |
| */ |
| void captureValues(ViewGroup sceneRoot, boolean start) { |
| clearValues(start); |
| if (mTargetIds.size() > 0 || mTargets.size() > 0) { |
| if (mTargetIds.size() > 0) { |
| for (int i = 0; i < mTargetIds.size(); ++i) { |
| int id = mTargetIds.get(i); |
| View view = sceneRoot.findViewById(id); |
| if (view != null) { |
| TransitionValues values = new TransitionValues(); |
| values.view = view; |
| if (start) { |
| captureStartValues(values); |
| } else { |
| captureEndValues(values); |
| } |
| if (start) { |
| mStartValues.viewValues.put(view, values); |
| if (id >= 0) { |
| mStartValues.idValues.put(id, values); |
| } |
| } else { |
| mEndValues.viewValues.put(view, values); |
| if (id >= 0) { |
| mEndValues.idValues.put(id, values); |
| } |
| } |
| } |
| } |
| } |
| if (mTargets.size() > 0) { |
| for (int i = 0; i < mTargets.size(); ++i) { |
| View view = mTargets.get(i); |
| if (view != null) { |
| TransitionValues values = new TransitionValues(); |
| values.view = view; |
| if (start) { |
| captureStartValues(values); |
| } else { |
| captureEndValues(values); |
| } |
| if (start) { |
| mStartValues.viewValues.put(view, values); |
| } else { |
| mEndValues.viewValues.put(view, values); |
| } |
| } |
| } |
| } |
| } else { |
| captureHierarchy(sceneRoot, start); |
| } |
| } |
| |
| /** |
| * Clear valuesMaps for specified start/end state |
| * |
| * @param start true if the start values should be cleared, false otherwise |
| */ |
| void clearValues(boolean start) { |
| if (start) { |
| mStartValues.viewValues.clear(); |
| mStartValues.idValues.clear(); |
| mStartValues.itemIdValues.clear(); |
| } else { |
| mEndValues.viewValues.clear(); |
| mEndValues.idValues.clear(); |
| mEndValues.itemIdValues.clear(); |
| } |
| } |
| |
| /** |
| * Recursive method which captures values for an entire view hierarchy, |
| * starting at some root view. Transitions without targetIDs will use this |
| * method to capture values for all possible views. |
| * |
| * @param view The view for which to capture values. Children of this View |
| * will also be captured, recursively down to the leaf nodes. |
| * @param start true if values are being captured in the start scene, false |
| * otherwise. |
| */ |
| private void captureHierarchy(View view, boolean start) { |
| if (view == null) { |
| return; |
| } |
| boolean isListViewItem = false; |
| if (view.getParent() instanceof ListView) { |
| isListViewItem = true; |
| } |
| if (isListViewItem && !((ListView) view.getParent()).getAdapter().hasStableIds()) { |
| // ignore listview children unless we can track them with stable IDs |
| return; |
| } |
| int id = View.NO_ID; |
| long itemId = View.NO_ID; |
| if (!isListViewItem) { |
| id = view.getId(); |
| } else { |
| ListView listview = (ListView) view.getParent(); |
| int position = listview.getPositionForView(view); |
| itemId = listview.getItemIdAtPosition(position); |
| // view.setHasTransientState(true); |
| } |
| if (mTargetIdExcludes != null && mTargetIdExcludes.contains(id)) { |
| return; |
| } |
| if (mTargetExcludes != null && mTargetExcludes.contains(view)) { |
| return; |
| } |
| if (mTargetTypeExcludes != null && view != null) { |
| int numTypes = mTargetTypeExcludes.size(); |
| for (int i = 0; i < numTypes; ++i) { |
| if (mTargetTypeExcludes.get(i).isInstance(view)) { |
| return; |
| } |
| } |
| } |
| TransitionValues values = new TransitionValues(); |
| values.view = view; |
| if (start) { |
| captureStartValues(values); |
| } else { |
| captureEndValues(values); |
| } |
| if (start) { |
| if (!isListViewItem) { |
| mStartValues.viewValues.put(view, values); |
| if (id >= 0) { |
| mStartValues.idValues.put((int) id, values); |
| } |
| } else { |
| mStartValues.itemIdValues.put(itemId, values); |
| } |
| } else { |
| if (!isListViewItem) { |
| mEndValues.viewValues.put(view, values); |
| if (id >= 0) { |
| mEndValues.idValues.put((int) id, values); |
| } |
| } else { |
| mEndValues.itemIdValues.put(itemId, values); |
| } |
| } |
| if (view instanceof ViewGroup) { |
| // Don't traverse child hierarchy if there are any child-excludes on this view |
| if (mTargetIdChildExcludes != null && mTargetIdChildExcludes.contains(id)) { |
| return; |
| } |
| if (mTargetChildExcludes != null && mTargetChildExcludes.contains(view)) { |
| return; |
| } |
| if (mTargetTypeChildExcludes != null && view != null) { |
| int numTypes = mTargetTypeChildExcludes.size(); |
| for (int i = 0; i < numTypes; ++i) { |
| if (mTargetTypeChildExcludes.get(i).isInstance(view)) { |
| return; |
| } |
| } |
| } |
| ViewGroup parent = (ViewGroup) view; |
| for (int i = 0; i < parent.getChildCount(); ++i) { |
| captureHierarchy(parent.getChildAt(i), start); |
| } |
| } |
| } |
| |
| public TransitionValues getTransitionValues(View view, boolean start) { |
| if (mParent != null) { |
| return mParent.getTransitionValues(view, start); |
| } |
| TransitionValuesMaps valuesMaps = start ? mStartValues : mEndValues; |
| TransitionValues values = valuesMaps.viewValues.get(view); |
| if (values == null) { |
| int id = view.getId(); |
| if (id >= 0) { |
| values = valuesMaps.idValues.get(id); |
| } |
| if (values == null && view.getParent() instanceof ListView) { |
| ListView listview = (ListView) view.getParent(); |
| int position = listview.getPositionForView(view); |
| long itemId = listview.getItemIdAtPosition(position); |
| values = valuesMaps.itemIdValues.get(itemId); |
| } |
| // TODO: Doesn't handle the case where a view was parented to a |
| // ListView (with an itemId), but no longer is |
| } |
| return values; |
| } |
| |
| /** |
| * Pauses this transition, sending out calls to {@link |
| * TransitionListener#onTransitionPause(TransitionPort)} to all listeners |
| * and pausing all running animators started by this transition. |
| * |
| * @hide |
| */ |
| public void pause() { |
| if (!mEnded) { |
| ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators(); |
| int numOldAnims = runningAnimators.size(); |
| for (int i = numOldAnims - 1; i >= 0; i--) { |
| Animator anim = runningAnimators.keyAt(i); |
| // anim.pause(); |
| } |
| if (mListeners != null && mListeners.size() > 0) { |
| ArrayList<TransitionListener> tmpListeners = |
| (ArrayList<TransitionListener>) mListeners.clone(); |
| int numListeners = tmpListeners.size(); |
| for (int i = 0; i < numListeners; ++i) { |
| tmpListeners.get(i).onTransitionPause(this); |
| } |
| } |
| mPaused = true; |
| } |
| } |
| |
| /** |
| * Resumes this transition, sending out calls to {@link |
| * TransitionListener#onTransitionPause(TransitionPort)} to all listeners |
| * and pausing all running animators started by this transition. |
| * |
| * @hide |
| */ |
| public void resume() { |
| if (mPaused) { |
| if (!mEnded) { |
| ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators(); |
| int numOldAnims = runningAnimators.size(); |
| for (int i = numOldAnims - 1; i >= 0; i--) { |
| Animator anim = runningAnimators.keyAt(i); |
| // anim.resume(); |
| } |
| if (mListeners != null && mListeners.size() > 0) { |
| ArrayList<TransitionListener> tmpListeners = |
| (ArrayList<TransitionListener>) mListeners.clone(); |
| int numListeners = tmpListeners.size(); |
| for (int i = 0; i < numListeners; ++i) { |
| tmpListeners.get(i).onTransitionResume(this); |
| } |
| } |
| } |
| mPaused = false; |
| } |
| } |
| |
| /** |
| * Called by TransitionManager to play the transition. This calls |
| * createAnimators() to set things up and create all of the animations and then |
| * runAnimations() to actually start the animations. |
| */ |
| void playTransition(ViewGroup sceneRoot) { |
| ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators(); |
| int numOldAnims = runningAnimators.size(); |
| for (int i = numOldAnims - 1; i >= 0; i--) { |
| Animator anim = runningAnimators.keyAt(i); |
| if (anim != null) { |
| AnimationInfo oldInfo = runningAnimators.get(anim); |
| if (oldInfo != null && oldInfo.view != null && |
| oldInfo.view.getContext() == sceneRoot.getContext()) { |
| boolean cancel = false; |
| TransitionValues oldValues = oldInfo.values; |
| View oldView = oldInfo.view; |
| TransitionValues newValues = mEndValues.viewValues != null ? |
| mEndValues.viewValues.get(oldView) : null; |
| if (newValues == null) { |
| newValues = mEndValues.idValues.get(oldView.getId()); |
| } |
| if (oldValues != null) { |
| // if oldValues null, then transition didn't care to stash values, |
| // and won't get canceled |
| if (newValues != null) { |
| for (String key : oldValues.values.keySet()) { |
| Object oldValue = oldValues.values.get(key); |
| Object newValue = newValues.values.get(key); |
| if (oldValue != null && newValue != null && |
| !oldValue.equals(newValue)) { |
| cancel = true; |
| if (DBG) { |
| Log.d(LOG_TAG, "Transition.playTransition: " + |
| "oldValue != newValue for " + key + |
| ": old, new = " + oldValue + ", " + newValue); |
| } |
| break; |
| } |
| } |
| } |
| } |
| if (cancel) { |
| if (anim.isRunning() || anim.isStarted()) { |
| if (DBG) { |
| Log.d(LOG_TAG, "Canceling anim " + anim); |
| } |
| anim.cancel(); |
| } else { |
| if (DBG) { |
| Log.d(LOG_TAG, "removing anim from info list: " + anim); |
| } |
| runningAnimators.remove(anim); |
| } |
| } |
| } |
| } |
| } |
| |
| createAnimators(sceneRoot, mStartValues, mEndValues); |
| runAnimators(); |
| } |
| |
| /** |
| * This is a utility method used by subclasses to handle standard parts of |
| * setting up and running an Animator: it sets the {@link #getDuration() |
| * duration} and the {@link #getStartDelay() startDelay}, starts the |
| * animation, and, when the animator ends, calls {@link #end()}. |
| * |
| * @param animator The Animator to be run during this transition. |
| * @hide |
| */ |
| protected void animate(Animator animator) { |
| // TODO: maybe pass auto-end as a boolean parameter? |
| if (animator == null) { |
| end(); |
| } else { |
| if (getDuration() >= 0) { |
| animator.setDuration(getDuration()); |
| } |
| if (getStartDelay() >= 0) { |
| animator.setStartDelay(getStartDelay()); |
| } |
| if (getInterpolator() != null) { |
| animator.setInterpolator(getInterpolator()); |
| } |
| animator.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| end(); |
| animation.removeListener(this); |
| } |
| }); |
| animator.start(); |
| } |
| } |
| |
| /** |
| * This method is called automatically by the transition and |
| * TransitionSet classes prior to a Transition subclass starting; |
| * subclasses should not need to call it directly. |
| * |
| * @hide |
| */ |
| protected void start() { |
| if (mNumInstances == 0) { |
| if (mListeners != null && mListeners.size() > 0) { |
| ArrayList<TransitionListener> tmpListeners = |
| (ArrayList<TransitionListener>) mListeners.clone(); |
| int numListeners = tmpListeners.size(); |
| for (int i = 0; i < numListeners; ++i) { |
| tmpListeners.get(i).onTransitionStart(this); |
| } |
| } |
| mEnded = false; |
| } |
| mNumInstances++; |
| } |
| |
| /** |
| * This method is called automatically by the Transition and |
| * TransitionSet classes when a transition finishes, either because |
| * a transition did nothing (returned a null Animator from |
| * {@link TransitionPort#createAnimator(ViewGroup, TransitionValues, |
| * TransitionValues)}) or because the transition returned a valid |
| * Animator and end() was called in the onAnimationEnd() |
| * callback of the AnimatorListener. |
| * |
| * @hide |
| */ |
| protected void end() { |
| --mNumInstances; |
| if (mNumInstances == 0) { |
| if (mListeners != null && mListeners.size() > 0) { |
| ArrayList<TransitionListener> tmpListeners = |
| (ArrayList<TransitionListener>) mListeners.clone(); |
| int numListeners = tmpListeners.size(); |
| for (int i = 0; i < numListeners; ++i) { |
| tmpListeners.get(i).onTransitionEnd(this); |
| } |
| } |
| for (int i = 0; i < mStartValues.itemIdValues.size(); ++i) { |
| TransitionValues tv = mStartValues.itemIdValues.valueAt(i); |
| View v = tv.view; |
| // if (v.hasTransientState()) { |
| // v.setHasTransientState(false); |
| // } |
| } |
| for (int i = 0; i < mEndValues.itemIdValues.size(); ++i) { |
| TransitionValues tv = mEndValues.itemIdValues.valueAt(i); |
| View v = tv.view; |
| // if (v.hasTransientState()) { |
| // v.setHasTransientState(false); |
| // } |
| } |
| mEnded = true; |
| } |
| } |
| |
| /** |
| * This method cancels a transition that is currently running. |
| * |
| * @hide |
| */ |
| protected void cancel() { |
| int numAnimators = mCurrentAnimators.size(); |
| for (int i = numAnimators - 1; i >= 0; i--) { |
| Animator animator = mCurrentAnimators.get(i); |
| animator.cancel(); |
| } |
| if (mListeners != null && mListeners.size() > 0) { |
| ArrayList<TransitionListener> tmpListeners = |
| (ArrayList<TransitionListener>) mListeners.clone(); |
| int numListeners = tmpListeners.size(); |
| for (int i = 0; i < numListeners; ++i) { |
| tmpListeners.get(i).onTransitionCancel(this); |
| } |
| } |
| } |
| |
| /** |
| * Adds a listener to the set of listeners that are sent events through the |
| * life of an animation, such as start, repeat, and end. |
| * |
| * @param listener the listener to be added to the current set of listeners |
| * for this animation. |
| * @return This transition object. |
| */ |
| public TransitionPort addListener(TransitionListener listener) { |
| if (mListeners == null) { |
| mListeners = new ArrayList<>(); |
| } |
| mListeners.add(listener); |
| return this; |
| } |
| |
| public TransitionPort removeListener(TransitionListener listener) { |
| if (mListeners == null) { |
| return this; |
| } |
| mListeners.remove(listener); |
| if (mListeners.size() == 0) { |
| mListeners = null; |
| } |
| return this; |
| } |
| |
| TransitionPort setSceneRoot(ViewGroup sceneRoot) { |
| mSceneRoot = sceneRoot; |
| return this; |
| } |
| |
| void setCanRemoveViews(boolean canRemoveViews) { |
| mCanRemoveViews = canRemoveViews; |
| } |
| |
| @Override |
| public String toString() { |
| return toString(""); |
| } |
| |
| @Override |
| public TransitionPort clone() { |
| TransitionPort clone = null; |
| try { |
| clone = (TransitionPort) super.clone(); |
| clone.mAnimators = new ArrayList<Animator>(); |
| clone.mStartValues = new TransitionValuesMaps(); |
| clone.mEndValues = new TransitionValuesMaps(); |
| } catch (CloneNotSupportedException e) { |
| } |
| |
| return clone; |
| } |
| |
| public String getName() { |
| return mName; |
| } |
| |
| String toString(String indent) { |
| String result = indent + getClass().getSimpleName() + "@" + |
| Integer.toHexString(hashCode()) + ": "; |
| if (mDuration != -1) { |
| result += "dur(" + mDuration + ") "; |
| } |
| if (mStartDelay != -1) { |
| result += "dly(" + mStartDelay + ") "; |
| } |
| if (mInterpolator != null) { |
| result += "interp(" + mInterpolator + ") "; |
| } |
| if (mTargetIds.size() > 0 || mTargets.size() > 0) { |
| result += "tgts("; |
| if (mTargetIds.size() > 0) { |
| for (int i = 0; i < mTargetIds.size(); ++i) { |
| if (i > 0) { |
| result += ", "; |
| } |
| result += mTargetIds.get(i); |
| } |
| } |
| if (mTargets.size() > 0) { |
| for (int i = 0; i < mTargets.size(); ++i) { |
| if (i > 0) { |
| result += ", "; |
| } |
| result += mTargets.get(i); |
| } |
| } |
| result += ")"; |
| } |
| return result; |
| } |
| |
| public interface TransitionListener { |
| |
| /** |
| * Notification about the start of the transition. |
| * |
| * @param transition The started transition. |
| */ |
| void onTransitionStart(TransitionPort transition); |
| |
| /** |
| * Notification about the end of the transition. Canceled transitions |
| * will always notify listeners of both the cancellation and end |
| * events. That is, {@link #onTransitionEnd(TransitionPort)} is always called, |
| * regardless of whether the transition was canceled or played |
| * through to completion. |
| * |
| * @param transition The transition which reached its end. |
| */ |
| void onTransitionEnd(TransitionPort transition); |
| |
| /** |
| * Notification about the cancellation of the transition. |
| * Note that cancel may be called by a parent {@link TransitionSetPort} on |
| * a child transition which has not yet started. This allows the child |
| * transition to restore state on target objects which was set at |
| * {@link #createAnimator(ViewGroup, TransitionValues, TransitionValues) |
| * createAnimator()} time. |
| * |
| * @param transition The transition which was canceled. |
| */ |
| void onTransitionCancel(TransitionPort transition); |
| |
| /** |
| * Notification when a transition is paused. |
| * Note that createAnimator() may be called by a parent {@link TransitionSetPort} on |
| * a child transition which has not yet started. This allows the child |
| * transition to restore state on target objects which was set at |
| * {@link #createAnimator(ViewGroup, TransitionValues, TransitionValues) |
| * createAnimator()} time. |
| * |
| * @param transition The transition which was paused. |
| */ |
| void onTransitionPause(TransitionPort transition); |
| |
| /** |
| * Notification when a transition is resumed. |
| * Note that resume() may be called by a parent {@link TransitionSetPort} on |
| * a child transition which has not yet started. This allows the child |
| * transition to restore state which may have changed in an earlier call |
| * to {@link #onTransitionPause(TransitionPort)}. |
| * |
| * @param transition The transition which was resumed. |
| */ |
| void onTransitionResume(TransitionPort transition); |
| } |
| |
| /** |
| * Utility adapter class to avoid having to override all three methods |
| * whenever someone just wants to listen for a single event. |
| * |
| * @hide |
| */ |
| public static class TransitionListenerAdapter implements TransitionListener { |
| |
| @Override |
| public void onTransitionStart(TransitionPort transition) { |
| } |
| |
| @Override |
| public void onTransitionEnd(TransitionPort transition) { |
| } |
| |
| @Override |
| public void onTransitionCancel(TransitionPort transition) { |
| } |
| |
| @Override |
| public void onTransitionPause(TransitionPort transition) { |
| } |
| |
| @Override |
| public void onTransitionResume(TransitionPort transition) { |
| } |
| } |
| |
| /** |
| * Holds information about each animator used when a new transition starts |
| * while other transitions are still running to determine whether a running |
| * animation should be canceled or a new animation noop'd. The structure holds |
| * information about the state that an animation is going to, to be compared to |
| * end state of a new animation. |
| */ |
| private static class AnimationInfo { |
| |
| View view; |
| |
| String name; |
| |
| TransitionValues values; |
| |
| AnimationInfo(View view, String name, TransitionValues values) { |
| this.view = view; |
| this.name = name; |
| this.values = values; |
| } |
| } |
| |
| /** |
| * Utility class for managing typed ArrayLists efficiently. In particular, this |
| * can be useful for lists that we don't expect to be used often (eg, the exclude |
| * lists), so we'd like to keep them nulled out by default. This causes the code to |
| * become tedious, with constant null checks, code to allocate when necessary, |
| * and code to null out the reference when the list is empty. This class encapsulates |
| * all of that functionality into simple add()/remove() methods which perform the |
| * necessary checks, allocation/null-out as appropriate, and return the |
| * resulting list. |
| */ |
| private static class ArrayListManager { |
| |
| /** |
| * Add the specified item to the list, returning the resulting list. |
| * The returned list can either the be same list passed in or, if that |
| * list was null, the new list that was created. |
| * |
| * Note that the list holds unique items; if the item already exists in the |
| * list, the list is not modified. |
| */ |
| static <T> ArrayList<T> add(ArrayList<T> list, T item) { |
| if (list == null) { |
| list = new ArrayList<T>(); |
| } |
| if (!list.contains(item)) { |
| list.add(item); |
| } |
| return list; |
| } |
| |
| /** |
| * Remove the specified item from the list, returning the resulting list. |
| * The returned list can either the be same list passed in or, if that |
| * list becomes empty as a result of the remove(), the new list was created. |
| */ |
| static <T> ArrayList<T> remove(ArrayList<T> list, T item) { |
| if (list != null) { |
| list.remove(item); |
| if (list.isEmpty()) { |
| list = null; |
| } |
| } |
| return list; |
| } |
| } |
| |
| } |
